GraphicsPath.AddBezier Method (PointF, PointF, PointF, PointF)
Adds a cubic Bézier curve to the current figure.
Assembly: System.Drawing (in System.Drawing.dll)
The cubic curve is constructed from the first point to the fourth point by using the second and third points as control points.
If there is a previous line or curve segment in the figure, a line is added to connect the endpoint of the previous segment to the starting point of the cubic curve.
Available since 1.1